Science writer Gabrielle Walker examines the oldest remnants of the Earth's surface, including a fossilised beach, to see what they can tell us about the time when life first began to appear. Producer Roland Pease.
Discover 11,128,835 listings and 282,064 playable programmes from the BBC
Science writer Gabrielle Walker examines the oldest remnants of the Earth's surface, including a fossilised beach, to see what they can tell us about the time when life first began to appear. Producer Roland Pease.